Introduction: In today's age, digital devices have become an integral part of children's lives from an early age. Exposure to screens represents a significant change in the growing up experience of school-aged children. The impact of screen use on children's emotional and physical development is causing increasing interest and concern. Conducted research shows the negative consequences of excessive screen time on academic success, social skills, and physical and mental health. Objective: The main objective of this research is to examine the relationship between the amount of time spent in front of digital devices, school success, extracurricular activities, body mass index centile and general emotional distress. Methods: A total of 101 students of the 7th and 8th grades of elementary schools in Rijeka and Ivan Rabljanina Elementary School from the island of Rab participated in the research. In addition to socio-demographic data, data on the time and habits of using digital devices, as well as data on school success and body mass, were collected. Emotional disturbance was examined with the YP-core questionnaire. Results: The average time students spend daily in front of the screen is 4.64±1.9 hours. There is no significant difference between male and female students in the total time spent in front of screens (t=0.386, p=0.700). No significant correlation was found between the time spent on digital devices with school performance and body mass of students. Students who do not have a single extracurricular activity spend statistically significantly more time on digital devices (t=3.331, p=0.042). A higher level of emotional distress is positively related to a longer time spent on digital devices (r=0.251, p=0.011). Conclusion: The introduction of digital devices into the daily life of adolescents has brought many benefits, but also potential risks for their physical and emotional health. In order to prevent negative impacts, education on the healthy use of digital devices is essential. An important part of education is emphasizing the need for balance between time spent on digital devices and other activities. Encouraging adolescents to participate in a variety of activities that do not involve digital devices can significantly contribute to their overall emotional and physical health.